Lifting jack



Deca 22, 1936. N, G JENSE] 2,065,277

LIFTING JACK Filed Feb. 25, 1935 /nynton cnf-@2222 22W/ l vehicle islifted to a height determined by the tical position so that the vehicleis raised so difference between the length 0f the jack body high thatthe W'IQel OI Wheels 23 EKG lifted IOIII the shorter intermediate memberand by the the track distance between the point et which the eek InOrder t0y prevent the different parts of the p body is suspended to thevehicle and the track. device flm Coming TIO Contact and causing Anembodiment er the invention is illustrated disagreeable noise when thejack is in the inopby Way of example in the accompanying drawertVeDOSOrl, a Spring 22 may be inserted ing in whiclybetween the sleeve Eiland the intermediate Fig. 1 shows in side elevation the jack with memberi3. A similar element may be inserted operating mechanism on a vehicleand in cpbetween the intermediate member 8 and the 25 erative position..lack body l. The clip Zi may have an abutment Fig. 2 is a similar Viewto Fig. 1 showing the, 2i for eliminating the lifting oscillation of thejack in inoperative position. jack body. The movement of the jack bodyFig. 3 is a perspective view of the jack. in the opposite direction canbe limited for Patented Dec.. 22, 1.936'

LIF'IING JACK Niels Gade Jensen, Viborg, Denmark Application February25, 1935, Serial No. 7,952 In Denmark January 16, 1935 7 Claims. (Cl.254-86) This invention relates to a jack for vehicles, than the distancebetween the bolt 5 which especially for motor cars, of the type whichrehingedly connects the intermediate member 8 mains permanently on thevehicle under the with the clip 3 and the track. When the spindlechassis and when required can be. actuated by I6 is rotated, the jackbody 'E with the intermehand, by means: of which the vehicle can bediate members 3 and E3 can be lifted into the completely or partlyraised sufficiently high, for normally inoperative position shown inFig. 2. 5 example, to enable the exchanging of a wheel. When it isdesired to raise the vehicle, the

The characteristic feature of the invention is spindle it is rotated inthe opposite direction that the jack body is a U-shaped piece providedas before so that the screw sleeve 2li moves away with a foot andmovably suspended on the vefrom the plate i5. As the sleeve is connected10 hicle, at two points situated in the same horiby the bolt l! totheU-shaped jack body 1, this zontal plane, by means of intermediatemembody and the intermediate members 8 and I3, bers of differentlengths. The jack body can be are shifted into the position shown inFig. l. oscillated by hand so that the foot is pressed The jack body land the intermediate member on the track and the corresponding end ofthe 8 are thus in the vertical or substantially ver- 3 The lifting jackconsists of a U-shaped jack example by the springs 22 or by an abutment30 body 'l of band iron which is attached by a' ring or nut arranged onthe spindle It but not member 8 to a clip Si on the axle i of thevehicle shown in the drawing. 1n order to prevent the and by means of alonger member I3 to a clip individual parts of the lifting jack fromcoming d mounted at 2 on the chassis. The jack bod-Y into contact when,owing to the spring suspenl iS DVOtall'y Crlrlected With the member 3 bysion of the vehicle when travelling, the points of 35 bolts il and haSre'rWafrdlY DTOjeCtng and suspension 5 and t must be situated in thesame downwardly inclined arms 9 to which by bolts horizontal plana i2the longer member 13 is nii/Gialli mounted The individuel parts of theuiting jeek may be The Jack body 'F has 3^ foot m adapted to restotherwise constructed than described and illus- 4o upon the tracktratedwithout departing from the scope of the 40 On the outer end of theintermediate member invention; for example the jack body 7 and the i3 aplate l5 is pivoted by means of pins Hi and L a spindle iii isjournalled in this plate. This Elsegga'tges hnghlanfeag Ocfasu Spindlehas abutments lg one on each side of pressed arm Under certaincircumstances the the plate i5, so that it cannot shift in longith 1 l i45 tudinal direction when rotated. The spindle I6 outer en@ of e S9111@e 3 may carry a bevel has at its Eme end a hexagonal portion m de wheelwhich meshes with a second bevel wheel signed to receive a hand crankO1. when the keyed on an aXleso that the spindle can be jack is employedon a motor car, the starting rotated from the 51de 0f the Vh01ecrank.The other end of the spindle has a FurthermOre, the arrangement may beSuch 50 screw threaded portion il screwed into an inthat the spindle canbe driven by hydraulic or ternally screw-threaded sleeve 2i] iixed onthe pneumatic power. In this instance a cylinder bolt il or the jackbody l. and piston may be substituted for the sleeve 20 The length ofthe jack body l and the interand the spindle IB, liquid under pressureor com- 55 mediate member 8 together is slightly greater lpressed airbeing supplied in known Way as soon 55 as the lifting jack has to beoperated to lift; the vehicle.

The jack of the type above described can be employed on any kind ofvehicle and as many jacks as there are wheels or sets of wheels may beprovided.

I claim:-

1. A jack especially for motor cars of the type permanently mounted onthe chassis of the vehicle and adapted to be actuated by hand to lift atleast a part of the vehicle, comprising in combination a jack body, afoot on said body, two intermediate members of different lengthspivotally connected at one end to said jack body, the short member tothe upper end and the long member near the lower end of the same, meansfor pivoting the members to the vehicle, and a spindle pivotallyconnected to the upper end of said jack body and rotatably mounted inthe longer of said intermediate members, said spindle adapted to berotated to displace the upper end of said jack body to swing the samerelatively to said long member to lower and raise said foot.

2. A jack as specied in claim l, in which the pivoting means arearranged substantially in the same horizontal plane.

3. In a jack as specified in claim 1 a bolt connecting the jack body tothe short member and plate arranged at the end of the long member remotefrom the jack body and adapted to rotatably support the operatingspindle.

4. A jack as specied in claim 1, in which a spring is arranged betweenthe operating spindle and the long member adapted to mutually supportsaid spindle and said member to prevent rattling when the vehicle istravelling.

5. A jack as specied in claim 1, in which a spring is arranged lbetweenthe operating spindle and the long member to mutually support saidspindle and said long member to prevent rattling when the vehicle istravelling.

6. In a jack as specied in claim 1 a plate arranged at the end of thelong member remote from the short member and adapted to rotatably carrythe spindle, and abutments on the spindle one on either side of saidplate adapted to prevent the longitudinal displacement of said spindlein said plate.

7. A jack as specied in claim 1, in which an abutment is provided on themember xed to the axle and carrying the pivot to limit the swingingmovement of said member away from the other iixing means.

NIELS GADE JENSEN.

